/Engine/Source/Runtime/MovieScene/Public/Evaluation/PreAnimatedState/MovieScenePreAnimatedStateStorage.h
Check whether the storage for a given index and requirement has already been initialized
bool IsStorageRequirementSatisfied ( [FPreAnimatedStorageIndex](API\Runtime\MovieScene\Evaluation\PreAnimatedState\FPreAnimatedStorageIndex) StorageIndex, [EPreAnimatedStorageRequirement](API\Runtime\MovieScene\Evaluation\PreAnimatedState\UE__MovieScene__-_2) StorageRequirement ) const